Blaise Pascal was a French mathematician, physicist, inventor, writer and Catholic philosopher. He was a child prodigy who was educated by his father, a tax collector in Rouen. Pascal's earliest work was in the natural and applied sciences...

Baruch Spinoza was a Dutch philosopher of Sephardi/Portuguese origin. By laying the groundwork for the 18th-century Enlightenment and modern biblical criticism, including modern conceptions of the self and the universe, he came to be consid...

John Locke was an English philosopher and physician regarded as one of the most influential of Enlightenment thinkers and known as the "Father of Classical Liberalism". Considered one of the first of the British empiricists, following the t...

Gottfried Wilhelm von Leibniz was a German mathematician and philosopher. He occupies a prominent place in the history of mathematics and the history of philosophy. Leibniz developed calculus independently of Isaac Newton, and Leibniz's...

Pierre Bayle was a French philosopher and writer best known for his seminal work the Historical and Critical Dictionary, published beginning in 1695. Bayle was a self-pronounced Protestant and as a fideist he advocated a separation between...

Bernard Mandeville was a philosopher, political economist and satirist. Born in the Netherlands, he lived most of his life in England and used English for most of his published works. He became famous for The Fable of the Bees. Mandeville's...

George Berkeley was one of the three most famous (Locke and Hume) eighteenth century British Empiricists. He is best known for his motto, esse is percipi, to be is to be perceived. He was an idealist: everything that exists is either a...

Emanuel Swedenborg was a Swedish scientist, philosopher, Christian mystic and theologian. Swedenborg had a prolific career as an inventor and scientist. In 1741 at the age of fifty-three he entered into a spiritual phase in which he eventua...

Francis Hutcheson was a philosopher born in Ireland to a family of Scottish Presbyterians who became one of the founding fathers of the Scottish Enlightenment. Hutcheson was an important influence on the works of several significant Enlight...

David Hume was a Scottish philosopher, historian, economist, and essayist known especially for his philosophical empiricism and scepticism. He was one of the most important figures in the Scottish Enlightenment, and in the history of Wester...

As a brilliant, undisciplined, and unconventional thinker, Jean-Jacques Rousseau spent most of his life being driven by controversy back and forth between Paris and his native Geneva. Rousseau first attracted wide-spread attention with his...

Claude Adrien Helvétius was a French philosopher and littérateur. In 1758, Helvétius published his philosophical magnum opus, a work called De l'esprit (On Mind). Its atheistic, utilitarian and egalitarian doctrines raised a public outcry a...

Paul-Henri Thiry, Baron d'Holbach was a French-German author, philosopher, encyclopedist and a prominent figure in the French Enlightenment. He was born Paul Heinrich Dietrich in Edesheim, near Landau in the Rhenish Palatinate, but lived an...

Immanuel Kant was a German philosopher who is widely considered to be a central figure of modern philosophy. He argued that fundamental concepts structure human experience, and that reason is the source of morality. His thought continues to...

Jeremy Bentham was a British philosopher, jurist, and social reformer. He is regarded as the founder of modern utilitarianism. Bentham became a leading theorist in Anglo-American philosophy of law, and a political radical whose ideas inf...